Chimney cowl



D. FRIEDMAN Nov. 26, 1940.

CHIMNEY c'owL Filed March 3, 1939 M Attorney M wh t-19 I UNITED STATES CHIMNEY OOWL Daniel Friedman, Chicago, 111.

mm March s, 1m. SerialNo. states 1 Claim. (01. aa-as) The present invention relates to an improved chimney cowl oi the streamlined type expressly designed to promote emcient draft and to minimine down draft.

a By way oi introduction, it is to be pointed out that the structure herein depicted and claimed is Generically stated, one phase of the invention deals with theaforementioned streamlined hood.

II this having an upstanding and crowning wind vane and being provided on its interior with a predetermined form oi attaching and retention bracket of a type capable of use interchangeably with varying chimney pipe fixtures standardized to by me for selective accommodation of said bracket.

Specifically, novelty is predicated on a sturdy annular attaching band connectible with the chimney pipe and provided with a single properly 8! shaped and stabilized spindle member for cooperation with said hood bracket.

In reducing to practice the principles oi th invention I have devised a structural assembly possessed oi,simplicity and economy and one,

30 which it is believed. may be justly and unreservedly endorsed by the trade as aptly fitted for the purposes intended. I

Other features and advantages will become more readily apparent irom the following de- 85 scription and the accompanying illustrative drawing.

In the accompanying drawing showing the preferred embodiment bi the invention and wherein like reference characters are utilized to designate 40 corresponding parts:

Figure l is a fragmentary sectional view 01 a part of the chimney pipe showing the improved cowl assembly, as constructed in accordance with this invention, operatively associated therewith.

5 Figure 2 is a front view, that is, a view observasanadapterringorbandandthisisoiapredetermined diameter'to externally surround the upper end of the pipe 8. The ring is fastened flush in place by suitable bolts or equivalent fasteners I. The supporting unit comprises a centrally positioned perpendicular spindle 8, this 5 forming the upper end oi. a rod 0. The intermediate portion of the rod 9 is bent laterally and downward and the lower end is welded or other- I wise secm'ed-to the supporting and adapter ring as at Hi. It will be noticed that the inclined inl. termediate portion of the rod is housed in a reinforcing sheet metal sheath II. The sheath sur- 7 rounds the rod and the lower end is formed into an extension I2, this being welded or otherwise secured to said ring 6 as shown to advantage in ll 7 Figures 1 and 4. a

,The streamlined hood-or cowl per se is denoted by the numeral ll. It has a substantially triangular crown portion and this is formed .01 companion sectors It and II having their "adjacent.

edges overlapping as at I! and suitably fastened together as at ll. The section I4 is provided with an extension which is bent up at right angles to form an appropriately designed wind vane II. The body portion comprises diverging walls I! and an inclined bight or connective wall 2|. These walls are shaped to provide the desired streamlined eiiect. For sake of rigidity a head is fashioned as at II and below this is the substantially U-shaped skirt 2!.

The attaching and retention bracket 23 is on the interior. This comprises a strap 0! metal 24 riveted in place as at 25 and having its free end bent into a double-U formation. This provides upper and lower "guide bearings 28. and 21 and an 36 end thrust or abutment memberv I! to accommodate the extreme upper end of the so-called spindle 8. The spindle l has a retaining pin, cotter key or the like II engageable with the limb 21, this being slipped in place after the parts are 40 assembled to maintain the same properly assembled. The numeral II designates a crosspiece or reinforcing brace carried by the hood and connected with the twin-U guide and thrust means. Thus, the hood. can be detachably and rotatably mounted on the spindle. in an obvious manner.

It is thought that the description taken in connection with the drawing will enable a clear understanding of the invention to be had. There- PATEN OFFICE! is v. v

2 neld'oi invention claimed msy be'resorted to if desired.

Having described the invention. what is cieimed as new is:

A chimney cowl comprising a cowl body, n.

supporting member having its upper "end vertop iimrt end a peirf'oiopioid hQfl uflw1v m each having e'hole' {or the-pm I spindle with'the upper end'of; the spindle beer-in:

against the -'nrst-'mnuonee nomonm port, a.

pin 'pai'ssing thro 'i gh the spindie-pirtbetween' the pair of nonzonm'mmn' bme-ma eaanecud at its ends" to side ports =01; theibody with; m intermediate portion connected to the S 'shaped portion adjacent the lower end thereof and a brace plate extending from the ripper edze of said 10 bracemember to thlt port of the strip which is connected with the top offikfiowl DANIEL FRIEDMAN. 

